WO2018021056A1 - Dispositif et procédé de commande de coussin gonflable de sécurité - Google Patents

Dispositif et procédé de commande de coussin gonflable de sécurité Download PDF

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Publication number
WO2018021056A1
WO2018021056A1 PCT/JP2017/025663 JP2017025663W WO2018021056A1 WO 2018021056 A1 WO2018021056 A1 WO 2018021056A1 JP 2017025663 W JP2017025663 W JP 2017025663W WO 2018021056 A1 WO2018021056 A1 WO 2018021056A1
Authority
WO
WIPO (PCT)
Prior art keywords
inflator
warning
environmental load
airbag
control device
Prior art date
Application number
PCT/JP2017/025663
Other languages
English (en)
Japanese (ja)
Inventor
西村　淳
淳司 東
Original Assignee
タカタ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by タカタ株式会社 filed Critical タカタ株式会社
Priority to EP17834064.2A priority Critical patent/EP3492324A4/fr
Priority to US16/321,019 priority patent/US20190152417A1/en
Publication of WO2018021056A1 publication Critical patent/WO2018021056A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/017—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including arrangements for providing electric power to safety arrangements or their actuating means, e.g. to pyrotechnic fuses or electro-mechanic valves
    • B60R21/0173—Diagnostic or recording means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01566—Devices for warning or indicating mode of inhibition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01122—Prevention of malfunction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01122—Prevention of malfunction
    • B60R2021/01129—Problems or faults
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01122—Prevention of malfunction
    • B60R2021/01184—Fault detection or diagnostic circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/005—Circuits arrangements for indicating a predetermined temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method, e.g. intermittent, or the display, e.g. digital
    • G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method, e.g. intermittent, or the display, e.g. digital using a threshold to release an alarm or displaying means

Definitions

  • the present invention relates to an airbag control device and method for controlling the operation of an airbag device installed in a moving body such as an automobile.
  • An airbag device such as an automobile is configured to restrain an occupant by inflating an airbag by operating an inflator when an emergency such as a vehicle collision or rollover is detected.
  • Patent Document 1 describes a device for deactivating an airbag ignition device that deactivates the ignition device of the airbag device in accordance with the presence or absence of a child seat.
  • inflator output characteristics changes over time is due to changes in the properties of gunpowder, and changes in gunpowder properties are said to occur due to temperature changes around the airbag, humidity, and time.
  • An object of the present invention is to provide an airbag control apparatus and method that cope with aging in response to environmental conditions in which an airbag apparatus is installed.
  • the airbag control device of the present invention is an airbag control device having an emergency detection means and an inflator operation means for operating an inflator of the airbag device based on an emergency detection signal of the emergency detection means.
  • Environmental load detecting means for detecting the environmental load of the airbag device, integrating means for integrating the environmental load detected by the detecting means, and issuing a warning when the integrated environmental load value of the integrating means reaches a predetermined value
  • a countermeasure starting means for at least one of making the inflator operating means inoperable.
  • the environmental load is at least one of temperature, humidity, mileage of the vehicle, vibration of the vehicle, elapsed time since manufacture, and a region where the vehicle exists.
  • the environmental load is temperature and humidity.
  • At least one of the temperature and humidity detection means is a sensor provided in the vehicle, or a temperature or humidity data reception means transmitted from the communication means.
  • load index storage means for storing a load index set in accordance with temperature and humidity
  • the integrating means is based on measured values of temperature and humidity every predetermined time.
  • the load index is read from the load index storage means and integrated to obtain an environmental load integrated value.
  • the countermeasure starting means includes communication means for communicating the warning.
  • the countermeasure starting means issues a warning when the environmental load integrated value reaches a first predetermined value, and disables the inflator operating means when the second predetermined value is reached. Or the inflator activation means is disabled and a warning is issued.
  • the countermeasure starting unit issues a warning when the environmental load integrated value reaches a predetermined value and disables the inflator operating unit.
  • the warning includes a warning prompting replacement of the inflator and a warning indicating that the airbag device is not operable.
  • the configuration method of the airbag control device of the present invention is characterized in that the environmental load detection means, the integration means, and the countermeasure activation means are incorporated into the existing emergency detection means and inflator operation means.
  • An airbag control method is an airbag control method for operating an inflator of an airbag device based on an emergency detection signal, wherein the environmental load of the airbag device is integrated, and the integrated environmental load value is a predetermined value.
  • an air bag device mounted on an automobile or the like when subjected to severe environmental load conditions, at least one of a warning is given early and an inflator is not activated. Done.
  • the airbag device When subjected to a mild environmental load condition, the airbag device can be operated over a long period of time.
  • FIG. 1 is a block diagram of an automotive airbag control apparatus 1 according to an embodiment.
  • the airbag control device 1 is configured to control an inflator drive circuit 6 by a collision determination circuit 2, an environmental load integration / comparison circuit 3, and an AND circuit 5, and to control a warning device 8 by a warning device operation circuit 7. Yes.
  • the environmental load integrating / comparing circuit 3 receives the temperature detected by the temperature sensor 12 and the humidity detected by the humidity sensor 13.
  • the temperature sensor 12 and the humidity sensor 13 are installed in the vicinity of the airbag device.
  • the table of environmental load index data shown in FIG. 2 is stored in the memory of the environmental load integrating / comparing circuit.
  • the temperature is divided into a plurality of stages from the low temperature side to the high temperature side, and the humidity (in this case, the relative humidity) is divided into a plurality of stages from the low to the high.
  • Sections A to L are set, and a unique index is set for each section.
  • the temperature is less than 0 ° C. (section A, B, C), 0 ° C. or more and less than 40 ° C. (section D, E, F), 40 ° C. or more and less than 65 ° C. (section G, H, I), It is divided into four stages of 65 ° C. or higher (sections J, K, L).
  • Humidity is less than 30RH% (Category A, D, G, J), 30RH% to less than 60RH% (Category B, E, H, K), 60RH% or more (Category C, F, I, L) It is divided.
  • the values (index) of A to L are set as shown in Table 1. However, this is an example and does not limit the present invention.
  • the temperature and humidity are read at predetermined time intervals, and the environmental load index at that time is determined from the table in Table 1 above.
  • the warning device operating circuit 7 operates the warning device 8 to display a warning (for example, a warning prompting replacement of the inflator).
  • the AND circuit 5 operates the inflator driving circuit 6.
  • Examples of the warning device 8 include a display screen such as a liquid crystal provided on the instrument panel and a warning lamp.
  • a sound generating means for generating a warning sound or a warning sound may be used in addition to or instead of such a visual display. You may comprise so that a warning may be transmitted to a mobile communication terminal of a vehicle owner via a communication line. You may comprise so that the vehicle inflator drive circuit may not be operated via a communication line.
  • FIG. 3 is a flowchart for executing the above control.
  • the program starts, and first, the vehicle life timer T life is started (step 1 (denoted as S1 in FIG. At the same time, the timer T is started (step 2). Then, the detected temperature and humidity of the temperature sensor 12 and the humidity sensor 13 are read, or the detected temperature and humidity data are received from another system via the vehicle communication network (step 3), and the table of FIG. Lookup is performed (step 4), and an environmental load index value corresponding to the detected temperature and humidity is determined from A to L and added to the integrated value S in the memory (step 5).
  • the integrated value of the vehicle life timer T life is determined whether a predetermined value T th1 or more (step 6), the process proceeds to step 7 in the case of less than T th1, the integrated value S of the memory is equal to or larger than the predetermined value S 0 since either determined (step 7), and waits until a predetermined time elapses T 0 the process proceeds to step 8 in the case of less than S 0, after a predetermined time T 0 has elapsed, it resets the timer T (step 9), Return to step 2.
  • the warning device 8 does not operate. If the collision determination circuit 2 determines that there is a collision during this period, the inflator is activated and the airbag is inflated and deployed.
  • measures activation means, at the vehicle life timer integrated value T life ⁇ T th1 or environmental load integrated value S ⁇ S 0, to display a warning to the warning device 8, then the vehicle life timer integrated value T life ⁇ When T th2 or the environmental load integrated value S ⁇ S 1 , a warning is displayed on the alarm device 8 and the inflator drive circuit 6 is not operated, but the vehicle life timer integrated value T life ⁇ T th2 or the environment When the load integrated value S ⁇ S 1 , only one of displaying a warning on the warning device 8 and not operating the inflator driving circuit 6 may be used.
  • the threshold value S 0 and the threshold value S 1 are set to the same value, or the threshold value T th1 and the threshold value T th2 are set to the same value so that the inflator drive circuit 6 is not operated simultaneously with the warning display by the warning device 8. Also good.
  • the warning of the warning device 8 when the inflator drive circuit 6 is in an operable state notifies that the inflator needs to be replaced, and the warning when the inflator drive circuit 6 cannot be operated.
  • the warning of the device 8 is to notify the content that prompts the replacement of the inflator and the inability to operate the airbag, but is not limited thereto, and may include other content.
  • the maximum temperature category is 65 ° C or higher.
  • a significantly large index is set in a category of extremely high temperatures, for example, 200 ° C or higher, and 200 ° C is measured even a few times (for example, once or several times).
  • S ⁇ S 0 is determined.
  • the temperature sensor 12 and the humidity sensor 13 are used. However, the temperature data and the humidity data transmitted by communication means such as the Internet are received, and the temperature data and the humidity data are used for the environmental load integrating / comparing circuit 3. You may make it input into. Only one of the temperature data and the humidity data may be received from the communication means, and the other may be detected by a sensor.
  • the detection results of the temperature sensor 12 and the humidity sensor 13 may be transmitted to the management center using a communication device capable of wireless communication.
  • the management center monitors the environmental load integrated value of the vehicle from the received detection result, and transmits warning information to the vehicle when the integrated value exceeds a predetermined threshold.
  • the warning device 8 displays a warning or prevents the inflator drive circuit 6 from operating. Warning information may be transmitted from the management center to the mobile terminal of the vehicle owner.
  • the environmental load integrating / comparing circuit 3 can be omitted from the vehicle.
  • temperature and humidity are shown as environmental loads.
  • the environmental loads are not limited to these, and temperature, humidity, vehicle travel distance, vehicle vibration, and elapsed time since the vehicle was manufactured. It may be at least one of the vehicle existing area.
  • the environmental load is preferably two items of temperature and humidity, or one or more of these two items and the other items described above.
  • the vibration of the vehicle can be detected by measuring the acceleration in the direction orthogonal to the traveling direction provided in the vehicle, for example, the vertical direction.
  • the area where the vehicle is present can be detected using GPS information.
  • an environmental load integrating / comparing circuit 3, a warning device operating circuit 7 and the like are retrofitted to an existing airbag control device composed of the acceleration sensor 11, the collision determination circuit 2 and the inflator driving circuit 6 according to the present invention.
  • You may comprise a bag control apparatus.
  • the inflator is activated by detecting the collision of the vehicle, but the present invention includes the case where the inflator is activated by detecting the rollover of the vehicle.
  • the airbag device includes a side airbag device, a curtain airbag device, a knee bag device, etc. in addition to the airbag devices for the driver seat, the passenger seat, and the rear seat. Moreover, the airbag apparatus other than for motor vehicles is also included.

Abstract

La présente invention a pour objet de réaliser un dispositif et un procédé de commande de coussin gonflable de sécurité qui sont capables de gérer les changements dus au vieillissement en fonction des conditions environnementales dans lesquelles un dispositif de coussin gonflable de sécurité est installé. L'invention réalise à cet effet un dispositif de commande de coussin gonflable de sécurité et un procédé pour activer un gonfleur d'un coussin gonflable de sécurité sur la base d'un signal de détection d'urgence, ledit dispositif et ledit procédé de commande de coussin gonflable de sécurité étant caractérisés en ce que la charge environnementale du dispositif de coussin gonflable de sécurité est intégrée, et lorsque la valeur intégrée de la charge environnementale a atteint une valeur prédéterminée, une alerte est émise et/ou le gonfleur n'est pas activé même lorsqu'une urgence de véhicule est détectée. La charge environnementale comprend, par exemple, la température et l'humidité.
PCT/JP2017/025663 2016-07-28 2017-07-14 Dispositif et procédé de commande de coussin gonflable de sécurité WO2018021056A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP17834064.2A EP3492324A4 (fr) 2016-07-28 2017-07-14 Dispositif et procédé de commande de coussin gonflable de sécurité
US16/321,019 US20190152417A1 (en) 2016-07-28 2017-07-14 Air bag control device and air bag control method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016148591A JP6410768B2 (ja) 2016-07-28 2016-07-28 エアバッグ制御装置及びエアバッグ制御方法
JP2016-148591 2016-07-28

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Publication Number Publication Date
WO2018021056A1 true WO2018021056A1 (fr) 2018-02-01

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PCT/JP2017/025663 WO2018021056A1 (fr) 2016-07-28 2017-07-14 Dispositif et procédé de commande de coussin gonflable de sécurité

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US (1) US20190152417A1 (fr)
EP (1) EP3492324A4 (fr)
JP (1) JP6410768B2 (fr)
WO (1) WO2018021056A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11577678B1 (en) 2021-12-13 2023-02-14 Honda Motor Co., Ltd. Air bag module, monitoring apparatus for supplemental restraint system, and method

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JPS5318139A (en) * 1976-07-31 1978-02-20 Nissan Motor Co Ltd Device for alarming degradation of gas producer for air cushion
JPH1134788A (ja) * 1997-07-23 1999-02-09 Toyota Motor Corp エアバッグ用インフレータ
JPH11240429A (ja) * 1998-02-24 1999-09-07 Toshiba Corp データ分析通信装置、データ分析通信方法及びデータ分析通信プログラムを記録した媒体
JP2013017291A (ja) * 2011-07-02 2013-01-24 Denso Corp 電動車両用制御装置

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JP2000319086A (ja) * 1999-05-10 2000-11-21 Nippon Kayaku Co Ltd ガス発生剤成形体
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Publication number Priority date Publication date Assignee Title
JPS5318139A (en) * 1976-07-31 1978-02-20 Nissan Motor Co Ltd Device for alarming degradation of gas producer for air cushion
JPH1134788A (ja) * 1997-07-23 1999-02-09 Toyota Motor Corp エアバッグ用インフレータ
JPH11240429A (ja) * 1998-02-24 1999-09-07 Toshiba Corp データ分析通信装置、データ分析通信方法及びデータ分析通信プログラムを記録した媒体
JP2013017291A (ja) * 2011-07-02 2013-01-24 Denso Corp 電動車両用制御装置

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Title
See also references of EP3492324A4 *

Also Published As

Publication number Publication date
US20190152417A1 (en) 2019-05-23
JP6410768B2 (ja) 2018-10-24
EP3492324A1 (fr) 2019-06-05
JP2018016209A (ja) 2018-02-01
EP3492324A4 (fr) 2020-04-08

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